I have a 2002 cmx. 250. Came with 1400 miles. Put about another 2000 on it and always took care of it and change oil more often than need to. Well I wound up having to ride about an hour each way to work and let a few days go by that I didn't check it was 3/4 low. After a month or so I noticed it was burning oil quicker than usual. After compression test I know I have to replace rings I've only worked on a few gas scooters putting on big bore kits. Is this a similar process and should I use only oem rings? Can you recommend a rebuild kit? Thanks for the great video as well!
You can use china clone parts. I have but you just have to check the specs very closely. In my case the China Clone head the exhaust ports where slightly different in such a way for mounting the exhaust was different and required slight modification.
@@kd5bwp I appreciate you. I won't know till I crack her open but that's good to know. I have some Chinese parts from ebay in a cart.. it's literally all the rings gaskets and 2 cylinders. I'd think for what it is it will work. Crazy the video is old but your still helping fellow riders man.. that's really awesome of u! I'm going to more than likely make a bobber out of her. Maybe down and dirty loud exhaust and raw looking..thanks again. Helps alot to get a boost of confidence. I have feeler gauges and all the other fine tuning stuff from when I messed with scooters. This will be my first bike rebuild.
@@nicholascorbett4622 Tho the rings only really matter on thinness they can be too big in diameter and then cut to fit. The engine is the same pretty much from 1986 to current with the carb versions. Tho in 1985 and 1986 they had a 450 version and I had that one too.
@@kd5bwp I just lost a 450 in a bidding war through Facebook. It was an 87. 6000 miles. Only needed a back tire. I'm on the rebel forum and some of those people make it seem like if it's not oem and rebuilt to factory specs I'm wasting my time..I had no issues taking a 50cc scooter up to a 100 and rejetting with pod filters and upgrade cdi ,plugs,throttle adjustments and making them pretty fun with eBay Chinese parts. Again thanks for the vote of confidence
Had to pull the motor from the frame once I did that it came off when I pulled the cam and disconnected the cam from the gear. I left the chain in the block and only did a top end rebuild with a new head.
brother how much you have to measure the coils, I just realized that my bike has Chinese and that is a big problem because here in Venezuela you can not get the originals, yours are very different from my motorcycle
I have the same bike, and it would be really helpfull if you can upload the pages you show in the video about replacing the cam chain and pistons. If it says something about replacing the clutch it would be awesome. Thank you very much. Greetings from argentina.
Juan Lopez Gil I don't think so since it was last produced in like the early 90's for my model... What did you need and I could just post a picture of the pages for you to my drive account.
hello brother greetings from Venezuela, I have a honda nighthawk 250 year 1992 I mention one of the problems I have is that there are no good mechanics for this type of motorcycle, I have two years with a fault that when I put down the spark plug on the left side turns off only when I go in speed, in neutral does not , well the fault is more constant on the left side, and the right side is very little, to get it to start working the spark plug the disconnected and put the spark away and returns to match the spark plug, I hope you help me thanks .. .........
alex quintero if you can show a video that might help. But from the sounds like your cid box is having issues or you have a short from your neutral switch that controls your light on the dash.
alex quintero also check to make sure that the spark plugs do not have cracks in the boots causing you to lose spark. But your problem sounds electrical try with simple unplug the neutral switch and by pass that clutch switch.
if brother here is hard to find but which you recommend me the other thing is that he told me that the car can also serve me, now I do not know if it is recommended
I wasn't really have a ton of experiences working on cars and engines. The one in the video I used for the tourqe amounts and pattern. www.amazon.com/dp/1620923386/ref=cm_sw_r_cp_apa_fabc_5nEVFbCZDXZTM
I was drunk when I took mine apart. I played your video backwards to re-assemble it. sknahT.
Lol like pulp fiction?
Excellent video. Thank you for the time you took making it.
I have a 2002 cmx. 250. Came with 1400 miles. Put about another 2000 on it and always took care of it and change oil more often than need to. Well I wound up having to ride about an hour each way to work and let a few days go by that I didn't check it was 3/4 low. After a month or so I noticed it was burning oil quicker than usual. After compression test I know I have to replace rings I've only worked on a few gas scooters putting on big bore kits. Is this a similar process and should I use only oem rings? Can you recommend a rebuild kit? Thanks for the great video as well!
You can use china clone parts. I have but you just have to check the specs very closely. In my case the China Clone head the exhaust ports where slightly different in such a way for mounting the exhaust was different and required slight modification.
@@kd5bwp I appreciate you. I won't know till I crack her open but that's good to know. I have some Chinese parts from ebay in a cart.. it's literally all the rings gaskets and 2 cylinders. I'd think for what it is it will work. Crazy the video is old but your still helping fellow riders man.. that's really awesome of u! I'm going to more than likely make a bobber out of her. Maybe down and dirty loud exhaust and raw looking..thanks again. Helps alot to get a boost of confidence. I have feeler gauges and all the other fine tuning stuff from when I messed with scooters. This will be my first bike rebuild.
@@nicholascorbett4622 Tho the rings only really matter on thinness they can be too big in diameter and then cut to fit. The engine is the same pretty much from 1986 to current with the carb versions. Tho in 1985 and 1986 they had a 450 version and I had that one too.
@@kd5bwp I just lost a 450 in a bidding war through Facebook. It was an 87. 6000 miles. Only needed a back tire. I'm on the rebel forum and some of those people make it seem like if it's not oem and rebuilt to factory specs I'm wasting my time..I had no issues taking a 50cc scooter up to a 100 and rejetting with pod filters and upgrade cdi ,plugs,throttle adjustments and making them pretty fun with eBay Chinese parts. Again thanks for the vote of confidence
excellent machine
I got everything loose I just cant get the chain to come loose from the sprocket. Any tips???
You could just take a link out. Find the master link and remove the clip and the chain will separate and not be a loop anymore.
great stuff
trying to get Valves for the right side of my 2013 Honda rebel 250 You wouldn't happen to know what Size or have pictures would you thanks
I do not have that information sorry.
ok hermano me pondre en eso gracias estare en contacto
👏👏muy bueno maestro
Eh Luis Ávila pero que fue lo que hizo no se ve que cambió nada
hey kd5 what are the breakdown steps for timing that thing is it jus turn that to the lt then start it up or is there more to it than that
Tdc when you put the chain back on and adjust the valve lash and that's about it on these motors.
www.amazon.com/dp/1620923386/ref=cm_sw_r_cp_apa_fabc_5nEVFbCZDXZTM
Were you able to remove the head without taking out those boltls?
Had to pull the motor from the frame once I did that it came off when I pulled the cam and disconnected the cam from the gear. I left the chain in the block and only did a top end rebuild with a new head.
brother how much you have to measure the coils, I just realized that my bike has Chinese and that is a big problem because here in Venezuela you can not get the originals, yours are very different from my motorcycle
Not sure shortly after the video was made I traded the bike for a Jeep
Does it matter what cylinder you time?
They both work at the same time.
I have the same bike, and it would be really helpfull if you can upload the pages you show in the video about replacing the cam chain and pistons. If it says something about replacing the clutch it would be awesome. Thank you very much. Greetings from argentina.
Juan Lopez Gil ua-cam.com/video/Eqr0Szu1Axo/v-deo.html
ua-cam.com/video/qZxB7sUG_O4/v-deo.html
Juan Lopez Gil Whats your e-mail?
Sorry for answering so late. I'm not used to this google+ thing. My mail is cosasdejuanito@gmail.com
Where are you from?
kd5bwp Can u send me too? Sabbash23@Gmail.com
kd5bwp now I need to compile it into one. thanks in advance
Thank you, your video was really helpful. Do you know if the book you show at 7:15 is it available online?
Juan Lopez Gil I don't think so since it was last produced in like the early 90's for my model... What did you need and I could just post a picture of the pages for you to my drive account.
hello brother greetings from Venezuela, I have a honda nighthawk 250 year 1992
I mention one of the problems I have is that there are no good mechanics for this type of motorcycle, I have two years with a fault that when I put down the spark plug on the left side turns off only when I go in speed, in neutral does not , well the fault is more constant on the left side, and the right side is very little, to get it to start working the spark plug the disconnected and put the spark away and returns to match the spark plug, I hope you help me thanks .. .........
alex quintero if you can show a video that might help. But from the sounds like your cid box is having issues or you have a short from your neutral switch that controls your light on the dash.
alex quintero also check to make sure that the spark plugs do not have cracks in the boots causing you to lose spark. But your problem sounds electrical try with simple unplug the neutral switch and by pass that clutch switch.
You can use the China Version for the parts they will be close but never 100 match. Also life span is much shorter than OEM.
Tho I used a China 250 head on the OEM 250 Honda motor. It can work you just ha e to modify a little.
if brother here is hard to find but which you recommend me the other thing is that he told me that the car can also serve me, now I do not know if it is recommended
Para quitar la cabeza tienes que bajar el motor así no sale topa arriba
Sí, sé que cuando hice el video no lo hice, pero lo descubrí
what manual are you using ?
I wasn't really have a ton of experiences working on cars and engines. The one in the video I used for the tourqe amounts and pattern.
www.amazon.com/dp/1620923386/ref=cm_sw_r_cp_apa_fabc_5nEVFbCZDXZTM
Can I have a link from where to buy that manual that u have plzz
I think I had one but was from an auto repair shop.
www.amazon.com/dp/1620923386/ref=cm_sw_r_cp_apa_fabc_5nEVFbCZDXZTM
needle bearings for the camshaft
Yes it's because of higher rpm that these motors work at vs just a regular chevy 350